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Title: Half-life of the superallowed beta(+) emitter Ne-18
Authors: Grinyer, G. F ×
Smith, M. B
Andreoiu, C
Andreyev, A. N
Ball, G. C
Bricault, P
Chakrawarthy, R. S
Daoud, J. J
Finlay, P
Garrett, P. E
Hackman, G
Hyland, B
Leslie, J. R
Morton, A. C
Pearson, C. J
Phillips, A. A
Schumaker, M. A
Svensson, C. E
Valiente-Dobon, J. J
Williams, S. J
Zganjar, E. F #
Issue Date: 2007
Publisher: AMER PHYSICAL SOC
Series Title: Physical Review. C, Nuclear physics vol:76 issue:2
Abstract: The half-life of Ne-18 has been determined by detecting 1042-keV gamma rays in the daughter F-18 following the superallowed-Fermi beta(+) decay of samples implanted at the center of the 8 pi gamma-ray spectrometer, a spherical array of 20 HPGe detectors. Radioactive Ne-18 beams were produced on-line, mass-separated, and ionized using an electron-cyclotron-resonance ionization source at the ISAC facility at TRIUMF in Vancouver, Canada. This is the first high-precision half-life measurement of a superallowed Fermi beta decay to utilize both a large-scale HPGe spectrometer and the isotope separation on-line technique. The half-life of Ne-18, 1.6656 +/- 0.0019 s, deduced following a 1.4 sigma correction for detector pulse pile-up, is four times more precise than the previous world average. As part of an investigation into potential systematic effects, the half-life of the heavier isotope Ne-23 was determined to be 37.11 +/- 0.06 s, a factor of 2 improvement over the previous precision.
ISSN: 0556-2813
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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